Felix J. Yanovsky
National Aviation University Kiev, Ukraine
This chapter describes autonomous avionic devices used to acquire the information necessary for air navigation, except for radar altimeters, which were considered in Chapter 3. Any sensing device that measures motion parameters, or derives additional navigational information without interaction with ground-based or satellite equipment, is considered to be an autonomous sensor in this book.
Autonomous radio sensors are mostly based on radar principles, and such a sensor can actually constitute a rather complicated radar system, namely:
a. An Airborne Weather Radar (AWR) that is a pulse primary radar system (Barton ...